Ways to access Microsoft Graph API

Question

I am trying to access Microsoft Graph API using the following code in Java :-

    String url_str = "https://graph.microsoft.com/v1.0/users/";
    String access_token = getAccessToken();
    url = new URL(url_str);
    con = ( HttpURLConnection )url.openConnection();
    con.setDoInput(true);
    con.setDoOutput(true);
    con.setUseCaches(false);
    con.setRequestMethod("GET");
    con.setRequestProperty("Authorization", access_token);
    con.setRequestProperty("Accept","application/json");
    con.connect();

    br = new BufferedReader(new InputStreamReader( con.getInputStream() ));
    String str = null;
    String line;
    while((line = br.readLine()) != null) {
        str += line;
    }
    System.out.println(str);
} catch (Exception e) {
    e.printStackTrace();
}

Currently I am getting JSON String which i will need to parse further. All I want to know is there any other way which will reduce the pain of deserialization or something more better.

A Java client library for Microsoft Graph is on its way and will be available soon. Read the tea leaves at github.com/microsoftgraph/msgraph-sdk-android/issues/62 — Michael Mainer
– Michael Mainer, Commented Feb 14, 2018 at 18:31

Batman22 · Accepted Answer · 2018-02-28 16:02:56Z

5

Update on Martin answer, Java SDK is released and available for public preview :- https://github.com/microsoftgraph/msgraph-sdk-java.

answered Feb 28, 2018 at 16:02

Batman22

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Martin Brandl · Accepted Answer · 2018-03-05 12:50:05Z

2

Im not aware of any Java SDK for Microsoft Graph. However, you can use jsonutil to generate your java objects which will reduce at least some work.

Edit: As mentioned by Pranay, a Java SDK is released, you should use this instead.

edited Mar 5, 2018 at 12:50

answered Feb 14, 2018 at 18:17

Martin Brandl

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1 Comment

Jonathan Giles Over a year ago

This is no longer the best advice - use the Java SDK as noted in the other answers instead.

Dave Moten · Accepted Answer · 2020-09-16 08:37:05Z

Another Java client for Microsoft Graph is odata-client which has support for the Graph v1.0, Beta, Graph Explorer endpoints and for Dynamics CRM and Analytics for Devops OData services. I was an early collaborator on the msgraph-sdk-java library and the problems there led me to create what I think is a much stronger product. In particular odata-client-msgraph (and the sibling libraries)

uses immutability
detects changes for patching
models inheritance
extensively uses fluent builders
implements java.util.Stream on collections
provides easier authentication
offers better type safety
has very clean generated code
has better discoverability
has decent unit test coverage of API interactions
offers email helpers for that part of the API
is released very frequently in line with frequent service updates

Jonathan Giles · Accepted Answer · 2018-03-05 00:33:00Z

0

You should use the newly-released Java SDK for Microsoft Graph. More details were recently posted here, and the github repo for the SDK is here.

answered Mar 5, 2018 at 0:33

Jonathan Giles

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